Answer :
The calculated kinetic energy is 10.2 J
Measurements have been made of the cross section for the elastic scattering of electrons with energies lower than 10.2 eV by free hydrogen atoms. The signal from the electrons that were scattered by the beam appeared at the modulation frequency and at a predetermined phase, allowing for their identification. The ratio of the hydrogen atoms and the molecule's cross sections was directly measured, and absolute values for the atomic cross section were calculated using the absolute molecular cross-section.
The experimental findings support the theory.
Electron energy in the ground state is 0.13.6
In the second energy level, 3.4
Total energy level difference = 10.2
Thus, kinetic energy equals 10.2.
Therefore, we are aware that some electron kinetic energy was transmitted to the hydrogen atom during an elastic collision.
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